The sun and the planets are attracted to each other.The sun is much larger than the planets and can influence the orbits of the planets.

Yes, the patterns in the movements of the planetsmight be related to what happened in the solar system.

A model with relative sizes and distaqnces allow us toSee all of the solar system at once.

There is one group ofplanets that are smaller

and denser( Mercury, Venus, Earth and Mars.The other group of planets

are larger but much less dense.

The planets would most likely appear to be more spread out in the sky, instead of close together in a line.

Over a period of months or years astronomers could gather data about the relative positions of Earth, a planet and the sun. Analysis of the observations could be used to determine how planets move in relation to the Earth and the sun.

It would not be possibleto draw the solar system

to scale in this space andto be able to still see theplanets and

they relate to each other.

The distance from the planet to the sun would follow the pattern seen in the table.A little less than twice the distance from Mars to the sun is where the asteroid belt is located. The distance would most likely be between 2.6 and 3.0 Aus.

Scientists form hypothesis based on observations they can make andtheir knowledge of physical processes that may be the same on Earth and in the entire universe. By making predictions, comparing observations, and gathering data scientists can develop theories about distant phenomena.

1. Swirling gas and dust 2. Small particles clump

3. Larger particles attract 4. The large masses form the more mass sun and the planets

The third criterion of Kant’s nebular hypothesis describes how nebular dust gathers into clumps. As the clumps become larger, they attract additional particles, clearing the space around them. Just as “planets clear the neighborhood because their mass attracts smaller bodies as they orbit.

The satellites would move off into space if the gravitational pull between Earth and satellites no longer existed.

• Earth’s gravity will affect the path of the space probe when it takes off.

• If the probe does not reach a high enough speed, it may fall back to Earth.

• When the probe gets closer to Jupiter it will be affected by Jupiter’s gravity.

• It will need to approach Jupiter at exactly the right angle so that it enters an orbit. If the angle is incorrect the probe will crash into Jupiter.